For those with the new Surface Book with Performance Base there is also a driver update for the GTX 965M as well as the UEFI Firmware.

As always, open the Start Menu, and type "Check for Updates" to instantly access Windows Update to see if these new drivers are available. You will be asked to perform a restart when they have finished installing.

While this is little more than a Seems Faster™ update, it's always encouraging to see driver updates hitting Microsoft's Surface line. If you notice any significant changes as a result of these new drivers, let us know in the comments.